A woman tries on a pair of Google Glass during the Google I/O developer conference on May 17 in San Francisco. (Getty Images)

Under-fire Internet giant Google has banned pornography from its new goggles.

The firm suddenly announced it was changing the rules to block “adult” content from the high-tech Google Glass spectacles, just hours after sex industry bosses launched the first porn app for the device, according to The Sun.

Software developer MiKandi was left reeling by the change of policy just after it released an X-rated app for the gadget called “T–s and Glass”.

The company moaned Google changed its terms after it said it was about to launch the app. Ten thousand people flocked to its Web site, although just 17 were able to download the app.

MiKandi co-founder Jennifer McEwen said, “When we first picked up our device, we were very careful to comb through all of Google’s terms, policies and developers’ agreement to make sure we were playing within their rules.

“That was important to us to play in Google’s boundaries. Even last week as we were gearing up to make the announcement, we took a look the agreement and there was no mention again of a ban on adult content.”

Google announced its change of rules on Monday, adding, “Any Glassware that violates this policy will be blocked from appearing on Glass.”

MiKandi said it will try to find a way round the ban — even if that means models have to keep their clothes on.

“Being hands-free and hassle-free is a simple but big difference Glass has over other similar devices,” continued McEwen. “It’s so easy and familiar to wear, that from a shooter’s perspective it feels like you’re recording with your own eyes.”

“Because it feels so natural, you can forget about the technology and just be in the moment.”